Rotary cementing and snipping machine.



No. 878,959. PATENTED PEB.11, 1908.

H I ILLINGWORTH. Y

ROTARY OE'MENTINGA'ND SNIIISPING MACHINE.

APPLICATION FILED DEC 20,1906.

\ 3 SHEETS-SHEET l zaurr' l No. 878,959. PATENTED FEB. 11, 1908. H I ILLINGWORTH.

ROTARY GEMENTING AND SNIPPING MACHINE.

APPLIG TION FILED DE .20,1906. I

A O 3 SHEETS-SHEET 2.

Z0 masses (2 nrrn STATES HARRY i. 'itrmcwonrn, or sWAMrscorr, nllssaonusnrrs, iissicnoa 'ro nosrou MACHINE wosKs COMPANY, or rrivngnassacnusnrrs, A'CORPQHATION or use SACHUSETTS.

ncraar GEMENTING AND sunrise Machine.

Flo. crests.

specification of Letters Patent.

retested Feb. intense a paritioncla mant 20. 1906. cam No. 348.673;

We all whom it may concern:

he it known that l, Bauer 1. Immouronrn, a citizen. of the United States, residat Ewampscott, in'the county of Essex and State of Massachusetts, have invented an improvement in Rotary Oementing and uppers, but is adapted for genera use wherever it is desired to snip or cut at intervals during the a.

My present invention relates to that type of machine set forth at length in my cocending application 86E. No. 348,677, where means not only is the machine more sim le in its construction and operation, but t e Work accomplished is extremely accurate and certain and it is capable of being run at a h" her speedwith greater general eiliciency. ln' the accom' anying drawings I have shown a preferre embodiment of my inven- Figure 1 is a view in side elevation, partly broken away; Fig. 2 jis a front elevation partly broken away; 3 is a horizontal sectional view through t. e base of the machine,- showing the operating shaft and m echanism; Fig. 4 is an enlarged perspect ve View of the periphery of the cement apply ng wheel, showingits cellular structure; F173. 5 and 6 are fragmentary, views in front e evation and transverse section respectively,

of the mechanism for giving the, desired step-by step movement.

From any suitable plication ofcemeiitin a strip or other loca area.

shaft 3 and a lower shaft l positively driven in unison. by 11118 gears 5, 5; At the outer end of the shaft 3 is a cement-applying Wheel 7 receiving cement from the delivering mouth 8 of a cement-tank 9 and delivering the ce- -ment to work interposed at 10 between said cement Wheel and a ieed-v roll 11 mounted fast on the outer end of the shaft d, the latter overhanging arm 2 and its outer end pivotally supported at 13 on a post 14; held in yielding sliding positionby e. spring 15 in a bearing 16 in the l rarne.v

The construction above described and its general operation aresubstantially the same as'more fully set forth in my above-mentionedcopending application, although, as there stated,' l do not intend to restrict myselfto the structural details herein set forth unless otherwise required by certain of the more specific claims. The post 14 has a stop 17 at its lower end cooperating with a stop cam 18 rotated by an arm 19 With relation to a gage 20 on the front of the machine whereby the nearness to which the Wheel 7 and roll 11 can a proach is positively controlled, although t ey may yield a art to any extent required by unevenness 0 stock fed through the ma chine.

In mybefore-mentioned application the cementin and shipping movements take place Wit out any halting of the machine, said movements and the feeding of the stool; proceeding simultaneously and continuously, butlhave found that superior results can be secured by halting the mechanism for the snipping operation and that by arranging the halting mechanism so that it is exceedingly short in duration and so that the feeding and halting take place in such quick succession as to be almost imperceptible, not only can greater accuracy of Work be secured and less Wear of the machinere sult therefrom, but higher speed and general efficiency of the machine maybe complished. This rapid and yet absolutely positive stepby-step movement secured in ivention by providing a transverse shaft ds a overavin fast thereon a s ecial wormlilie Wheel base 1 exten n ;h g p hanging arm 2 in which is journaled an upp shaft havingits journal pivoted at 12 in the 22 cooperatin withaspur gear wheel 23 on I cated at 43,Fig.1."' Iprefer this construction} the shaft 4. he worm gearor broken cam 22 is of peculiar formation and comprises an oblique thread 24 set at an angle like a screw thread, and a cooperating thread 25 which is not oblique but lies in a plane perpendicular to the axis of rotation, said two threads at their approaching ends being preferabl the distance of one tooth apart, as clearly s iown in Figs 5, and at their divergent ends being apart the distance of aplurality of teeth, herein shown as two teeth. The pitch of the thread 24 depends upon the smoothness and speed of feeding movement desired. The thread 25 serves to positively lock the macaine during the snipping operation, as it is necessary that no variation or uncertainty'bepossible during this delicate and important operation of the machine, and the thread or tooth 24 accomplishes the feeding operation. Accordingly for lackof better terms I will cali the vertical tooth 25 the locking tooth or thread, and the oblique tooth 24 the feeding tooth or thread. In the present machine arrangement is such that the feeding and the halting are timed equally, and hence the vertical tooth extends half way around the shaft and the oblique or feeding tooth extends similarly half way around on the opposite side of the shaft, it being understood that these proportions will be varied accordingly to the variations in the relative timin of the feeding and halting operations. n the same shaft 21 I have shown a cam 26 whose peripheral shape is clearly shown in dotted lines in Fig. 1, said cam being in position to engage a roll 27 on a laterally projecting arm 28 fast at-29 on a rock-shaft 30, provided at its forward end with a bifurcated crank 31 which reciprocates a snipping plunger 32 having a long sliding bearing at 33 in the frame of the machine and provided at its upper end with a snipping knife 34. Said rock-shaft is held under normal tendency to maintain constant engagement with the cam 26 by a spring 35 fast at one end on the frame of the machine andat the other end to a pin 36 on the shaft 30, and is normally held in raised position by a dog 37in engagement with a stop 38, fast on the shaft 30, said dog 37 being held in its normal position by a spring 39 engaging an upright arm 40 at the outer end of the shaft and being operated by a lever 41 and treadle rod 42 (partly not shown). The cam 26 is so shaped and placed with relation to the threads 24, 25 that its entire rocking efiect on said rock-shaft takes place during the engagement of the locking tooth or thread 25'with the driving gear 23 and hence during the stationary period of the machine, the cam having a circular periphery for the greater portion of its extent excepting at a portion of one side, as indi- *cross barriers 49 thereby accomplishes date the snipping knife 34, and its overhanging periphery is slitted at 45 at proper inter-- vals to cooperate with the cement applier 7 for the smpping operation. The cement applying wheel 7 is specially constructed with a cellular periphery in order ,to. deliver the cement in the desired thin layer and maintain a uniform and, even feed thereof by having three ribs 46, 47, 48 spanned "by rovlding' vtwo series of oekets 50, 51, the atter being in 1 because it gives the quick incisive cuttiiigja vertical 8. inement with the overhanging or 1 snipping portion of the feed roll 11 and having cooperating cutting grooves, 52, to re ceive the cutting edge of the snipping knife 34. These grooves extend into the bottom of the pockets 51 sufficiently to insure a perfect incision in the leather, the corners '53 of. the rib 48 being rounded for-co6perating to the best advantage in facilitating the entrance of the knife. The barriers 49 or transverse walls extend entirely across the cement-applying wheel 7 to the ribs 48, thereby making complete pockets 51. It will be understood that the showing in Fig. 4 is grossly exaggerated, the knife-receiving slits or openings 52 being only sufficient in size to receive the cutting edge ofthe-knife, and the width of the Wheel being in practice usually less than a third of an inch in width for cementing shoe uppers;

The desired minimum amount of cement is maintained by scrapers or pads 54, clamps 55, etc, as explained more at len th in my copending plication, where t e construction is a calmed, and therefore not explained or shown in further detailin the present casel 5 Power is applied by any suitable means, herein shown as a belt pulley 56 and belt 57,-

loosely mounted on the shaft 21 and adapted to move into clutching'eng'ageicent with a friction flange 58 against a spring 59 by a" lever 60 projecting upwardly from a rockshaft 61 operated by an arm 62 and treadle (not shown) connected thereto @363.

Inuse the operator, having tarted the machine by de ressing the treadle arm 62,

places the wor between the feed wheel 11 therewith, and operating mechanisms conthrough a slit of said work feeder, to snip the 'structed and arranged to alternately rotate stock, in the interval of rest of said work said wheel and reciprocate said knife. feeder and Wheel. v

12. A machine, comprising a cement-ap- In testimony whereof, I have signed my 5 plying wheel, a snipping knife coi'iperatin name to this specification, in the presence of 15 therewith, means for rotating said whee two subscribin Witnesses. step-by-step, a slitted work feeder, means to HA R1 I. ILLINGvVORT-I-I.

operate said work feeder step by s te simull Witnesses: taneously with the rotation of sai wheel, ALBERT LAIHAM, 10 and means for reciprocating said knife A. K. PUTNAM. 

